The ISX (Ionospheric Scintillation eXplorer) primary mission is to study the multi-frequency radio wave interference produced by the atmosphere at sunset near the equator. The spacecraft will receive multiple broadcast digital television channels to probe the ionospheric irregularities.
The project began in 2015 as a joint effort between SRI International and Cal Poly. SRI is responsible for the payload design and construction, and the interpretation of mission data. Cal Poly is responsible for the CubeSat design and construction, and ground station operations. ISX is Cal Poly’s 11th CubeSat (CP11) and is a 3U configuration, based off the Cal Poly Tesseract Structure, optimized for ease of machining and assembly. ISX is scheduled to launch no earlier than May 2018.